Evidence map›Paper›PMID 19997559›Full record

ArticlePloS one2009

P-glycoprotein acts as an immunomodulator during neuroinflammation.

Gijs Kooij, Ronald Backer, Jasper J Koning, Arie Reijerkerk, Jack van Horssen, Susanne M A van der Pol, Joost Drexhage, Alfred Schinkel, Christine D Dijkstra, Joke M M den Haan and 2 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
1.9field-weighted citation impact, top 13% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

35 citing papers in PubMed, 72 citations in OpenAlex.

  1. Review
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  5. Association of variants in the ABCB1, CYP2C19 and CYP2C9 genes for Juvenile Myoclonic Epilepsy.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2024
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  6. High and Low Levels ofInternational journal of molecular sciences · 2023
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  7. Review
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  12. Brain-homing CD4Neurology(R) neuroimmunology & neuroinflammation · 2020
    Article
  13. Article
  14. Article
  15. Review
  16. Review
  17. Article
  18. P-glycoprotein and chronic rhinosinusitis.World journal of otorhinolaryngology - head and neck surgery · 2018
    Review
  19. Chorioamnionitis Induces a Specific Signature of Placental ABC Transporters Associated with an Increase of miR-331-5p in the Human Preterm Placenta.Cellular physiology and biochemistry : international journal of experimental cellular physiology, biochemistry, and pharmacology · 2018
    Article
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors at 3 institutions in 1 country.

Gijs KooijDepartment of Molecular Cell Biology and Immunology, VU University Medical Center, Amsterdam, The Netherlands.
Ronald Backer
Jasper J Koning
Arie Reijerkerk
Jack van Horssen
Susanne M A van der Pol
Joost Drexhage
Alfred Schinkel
Christine D Dijkstra
Joke M M den Haan
Teunis B H Geijtenbeek
Helga E de Vries
Amsterdam UMC Location VUmc · NLAcademic Medical Center · NLThe Netherlands Cancer Institute · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMultiple sclerosis is an inflammatory demyelinating disease of the central nervous system in which autoreactive myelin-specific T cells cause extensive tissue damage, resulting in neurological deficits. In the disease process, T cells are primed in the periphery by antigen presenting dendritic cells (DCs). DCs are considered to be crucial regulators of specific immune responses and molecules or proteins that regulate DC function are therefore under extensive investigation. We here investigated the potential immunomodulatory capacity of the ATP binding cassette transporter P-glycoprotein (P-gp). P-gp generally drives cellular efflux of a variety of compounds and is thought to be involved in excretion of inflammatory agents from immune cells, like DCs. So far, the immunomodulatory role of these ABC transporters is unknown. METHODS AND

findingsHere we demonstrate that P-gp acts as a key modulator of adaptive immunity during an in vivo model for neuroinflammation. The function of the DC is severely impaired in P-gp knockout mice (Mdr1a/1b-/-), since both DC maturation and T cell stimulatory capacity is significantly decreased. Consequently, Mdr1a/1b -/- mice develop decreased clinical signs of experimental autoimmune encephalomyelitis (EAE), an animal model for multiple sclerosis. Reduced clinical signs coincided with impaired T cell responses and T cell-specific brain inflammation. We here describe the underlying molecular mechanism and demonstrate that P-gp is crucial for the secretion of pro-inflammatory cytokines such as TNF-alpha and IFN-gamma. Importantly, the defect in DC function can be restored by exogenous addition of these cytokines.

conclusionsOur data demonstrate that P-gp downmodulates DC function through the regulation of pro-inflammatory cytokine secretion, resulting in an impaired immune response. Taken together, our work highlights a new physiological role for P-gp as an immunomodulatory molecule and reveals a possible new target for immunotherapy.

Indexed as

AnimalsATP Binding Cassette Transporter, Subfamily B, Member 1BrainCD8-Positive T-LymphocytesCell CommunicationCell DifferentiationCell ProliferationDendritic CellsDisease ProgressionEncephalomyelitis, Autoimmune, ExperimentalImmunologic FactorsInflammationInterferon-gammaLymphocyte ActivationMiceNervous SystemATP Binding Cassette Transporter, Subfamily B, Member 1Immunologic FactorsInterferon-gammaTumor Necrosis Factor-alpha

Identifiers

PMID19997559
PMCPMC2785479
OpenAlexW2145099250

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.